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| author |   Ingo Molnar <mingo@elte.hu> | 2007-11-09 22:39:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-11-09 22:39:39 +0100 |
| commit | 77d9cc44b543fa831169e54c495ad06ef3a0c726 (patch) | |
| tree | d92a3643b554413a9c7d844effda9f92c91b8aed /kernel/sched_fair.c | |
| parent | sched: wakeup preemption fix (diff) | |
| download | linux-dev-77d9cc44b543fa831169e54c495ad06ef3a0c726.tar.xz linux-dev-77d9cc44b543fa831169e54c495ad06ef3a0c726.zip | |
sched: clean up the wakeup preempt check
clean up the wakeup preemption check. No code changed:
text data bss dec hex filename
44227 3326 36 47589 b9e5 sched.o.before
44227 3326 36 47589 b9e5 sched.o.after
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to '')
| -rw-r--r-- | kernel/sched_fair.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index a3badf52bba2..d558716a9add 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -852,20 +852,21 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p) if (unlikely(p->policy == SCHED_BATCH)) return; - if (sched_feat(WAKEUP_PREEMPT)) { - while (!is_same_group(se, pse)) { - se = parent_entity(se); - pse = parent_entity(pse); - } - - delta = se->vruntime - pse->vruntime; - gran = sysctl_sched_wakeup_granularity; - if (unlikely(se->load.weight != NICE_0_LOAD)) - gran = calc_delta_fair(gran, &se->load); + if (!sched_feat(WAKEUP_PREEMPT)) + return; - if (delta > gran) - resched_task(curr); + while (!is_same_group(se, pse)) { + se = parent_entity(se); + pse = parent_entity(pse); } + + delta = se->vruntime - pse->vruntime; + gran = sysctl_sched_wakeup_granularity; + if (unlikely(se->load.weight != NICE_0_LOAD)) + gran = calc_delta_fair(gran, &se->load); + + if (delta > gran) + resched_task(curr); } static struct task_struct *pick_next_task_fair(struct rq *rq) |